Sirup pump



Msgmz June 5, 1923..

FLETCHER siRUP PUMP 'Filed Aug. 5o. 1921 2 Sheets-Sheet l HASSMZ J. B. FLETCHER SIRUP PUMP Filed Aug.

w Ki E fw /M @l rw .Fume 5 John Bine-cher elm nu,

-liateiriitiaiil dune 5, 1923.

' unire-u srares 'JOHN is. FLETCHER, oF'LoUiisvILLE, KENTUCKY, Assienon, BY DrREc'raN'D MESNE y .intacta career f carica;

ASSIGNMENTS, `Ollv `OklNE-EIIGHTH TO JOHN D.. FLETCHER, ONE-FOURTH TO .LEE LEWIS, NESIXTEENTH l'1.0 L. M. FLETCHER, AND ONE-SIXTEENTH T0 MINNIE L. FLETCHER, ALL OF LOUISVILLE, KENTUCKY.-

s IRUP PUMP.'

mutation ined August. ao, 192i. `serial No. 497,013.

To all whom. t may concern.'

a citizen of the United States, residing` at Louisville, in the county ot' Jefferson and State of Kentucky, have invented certain new and useful- 4Improvements 'in Sirup Pumps, of which the following is a specification. v

In the use of pumps at sodaf'ouiitains and suc-h places for dispensing sirups used in the preparation of sott drinks, -mucli waste usually .occurs because there is no way of measuring the quantity and the user, or

operator, commonly uses much more thanis necessary. 1 i The object of my invention is to provide a dispensing pump for such purposeswhich will measure the a'mount to be used and thus insure uniformity in the dispensingr and avoid unnecessary Waste.

' Referring to the accompanying drawings which are made a part hereof and on which asimilar reference characters indica-te'similar parts,

Figure '1 a vertical section, Figures 2 and 3 detail cross sections. 'on dotted lines 2-2 and 3 3 respectively, and Figures 4 and 5 v -iews showing modifications.. f

Said pump comp-rises a cylinder 10 adapt'- ed to be mounted .in the bottom of the sirup container-,having a piston 11 connected with a piston rod 12, which terminates at its u'pper end in a handle part 13 'which extends through Ia', casing14 anda spring .15. is provided for normali holding the p-istoni'n elevated position. longside said piston rod is a tube connected by a valve casing,r 17 -withl a port 18 leading'into the sirup container.,

A cylindrical valve 19 lis mounted in said valvecasinghaving va port 20 adapted to connect port 18 With-a port 21.1eadinp into the cylinder l0 above 'the piston.4 lSuch valve fhas another port 22 adaptel to .connect said port 18 With-a port-30 leading into the-tube '16 above the xalve casing. Said tube- 16 connects at its'upper end with a discharge spout 23 of a common type. Cylindrical valve 19 has a crank pin 24 ivoted to a slid-ing rod' 25 mounted, to slide 1n guides "26 and 27 secu-red on tube 16. It has a collar 28 adjustably mounted thereon Said collar 29 has an arm 31 'with' a bifurcated-end which embraces Vthe rod 25' and another collar 32 is'fmountedon'rod 25 abode said arm31. I i

The upper end of the pump is providedy With a. plate 33 adapted to cover the upper end ot' the sirup container. Casing 24 is mountedin the centcr'of said' plate or cover.

The .upper end of casing 14v has a tubular memberi-H mounted thm-'einr and connected.

therewith by a screw-threaded coiinection'as,

shown. The upper end ofhandle part 13 -has a tubular member 35sec-ui'ed thereto by a .screw-threaded' connection, its lower end being of a. diameter greater than/the diameter of part 13 to provide an interven 'ing space forthe coiled spring 15. The exterior surface of member-'35 and uthe interio'r surface of member 34 have a slid-v.`

ing tit. The spring` 15 bears at one end on 'tli'e' lower end of casing 34 and at its upper end against a` sh0ulder on member-35 at the point of its yscrew-threaded connection with part 13. The upper end of member 35 is formed as a knob-like part '36 and a plate 37 for bearing the name of the si'rup is-held' in '.placc by a member 36l screw-'threadedand mounted onl the top ofvmember'35 land having an overhanging fiance to clamp said plate 37 rfin position. `Discharge spout 23 isjformed' with a. re-

' back into the Sirup container from thc-angle stricted discharge opening-40 and leading.

at the mouth of said discharge spout is a return drip tube 41 which permits any siriip in said discharge. spout beyond said'angle Vto run back into the Sirup container and prevent the dripping of such Sirup-after the pump has been' opera-ted to discharge the.

predetermined quantity.

In operation the parts being in the pos i tion shown in Figurel 1,' tlie'operator forces the piston rod down andV carries with it the piston which operates by' suction to draw the Sirup from4 the container through ports 21, 20 and 18 into the cylinder' above the' piston, as will be readily understood. When the piston has reached nearly the llimit of its downward stroke, arml 31 contacts with co11ar28 and the-remainder of the movet l 4ment rotates cylindrical valve 19 to close the 'portsleading from the sirup container to the upper end o/fthe cylinderand opens the ports 18, 22 and 30. leading from the u per end of the cylinder' into the tube. ,pon releasing pressure on the knob 36 the spring l5 will ope-rate to return the' piston and-at the Sametime for'cethe-sirup Yabove the '.samethrough said ports into .the tube 16 and ont through the discharge spout By the adjustment of collar 28 on rod 25 and collar 29 on piston rod 12, ywhich carries the a'rm 31, the length of the stroke of the piston before operating valve 19 can be regulated so that the quantity of Sirup discharged 'can be likewise regulated to the 'I vamount desired. 0n the'return stroke ot the the apparatus; may be readily provided.' Thesel and other modifications, .which willV will continueto discharge until the piston 11 reaches the upper limit of its stroke. Thusby regulating therelative positions of collar28 and arm 31 the quantity of sirup.

used at each operation may be accurately measured. l ln Figure 4 a sliding valve 50is provided in lieu of the rotary valve 19 and operates in substantially the same Way and bythe same means to accomplish the same result, as -will he readily understood. l

In Figure 5 l shovyr another formof rotary valve operated by strike 55- on the end of the controlling rod and a cam 56 onthe in-r teriorfof the cylinder `and another cam 5"(r on the' tube 16. This. likewise operates in substantially the same manner and )is illustrated only to show that modified forms of readily 'suggest themselves to those skilled in the" art, may of course be adoptedvvvithout departing from thespirit of lmy invention) as defined by the4 appended claims.

* By this apparatus, as will be vreadily understood, a definitely measured amountA of sirup is discharged at each stroke v`or the piston or' pump and waste is not only avoided but the correct amount of sirup needed ,for the purpose is discharged. 7

Having thus fully described m said invention, what I clalm as new an ydesire to secure by Letters Patent, iszi 1. A sirupl dispensing pump for'fountain and such like uses .comprising a cover for' a sirup container, a depending annular iange` of Columbia, this 18th day of August,

on. the cover fitting closely to the 'top of -the container, depending members rigidlyl secured to the cover,'a cylinder at the lower end of said members and rigid therewith, an outlet passage in one of said members leadinc' out through said`cover, a piston in the cylinder, an inlet passage in the. wall of the cylinder, and in line with said outlet passage, a lateral passage connecting themnvith the interior of the' cylinder, a rotary valve at the intersection of said passages, and means on the cover for' operating the piston and the valve, substantially as set forth.

2. A sirup dispensing pump for fountain -and such like uses comprising a cover lfor a sirup container, adepending fiange on the cover, a cylinder adapted to be located near -the bottom of the container, apiston therefor, means rigidly-connecting the cylinder to the cover including a tubular member having inletand outlet openings at its opposite ends, a valve extending transversely thereof intermediate its ends and controlling-the inon 'the tubular member, a rod slidable in said brackets, 4.and connections between the rod and the piston for positive operation of the valve,f's'ubstantially as set forth..

3. A sirup dispensingpump for fountaln and such like uses comprising a cylinder for v Ainsert-ion in the sirnp container., a piston mounted to'operate in said cylinder. a discharge tube leading from said .cylinder and having a bentV portion -extending out over let 4and outlet passages,` a lateral passage from the valve to the cylinder. brackets the side of the container, and a drain tube l opening directly into the discharge tube at its outer end underneath the bent portion and leading back into .the container, substantially as setv forth.

4. A Sirup Pump Compnsng a cylinder i05( adapted'to be located near thebottoin of a container, saidcylinder having a lateralextens'io'n -ormed integral therewith and the extension having a transverse bore at its upper end, a passage leading from the bore to the lower end Aof the cylinder, a second downward passage leading to the upper end of the cylinder, an upwardly extending drscha'rge passage, an oscillatory valve 1n said bore having a pair of ports adapted respectively to connect'the second passage to the InwitiTess wherepf, have hereunto set i my hand and-seal at Washington, Dilstrict D. nineteen hundred and twenty-one.v f

^ JOHN" B.J FLETCHER.. [1.. 8.] Witnesses l E. W.` Bmmrolu),l O. M. Kars.

, inlet andoutletpassages, substantially as set 

